Cash register



' Oct-- 13, 1925. 1,556,957

W. H. ROBERTSDN CASH REGISTER Filed June 7, 1923 5 g m ms 1 55 wini m H. Robertson w. H. ROBERTSON CASH REGISTER Filed Jun '2. 1923 s shaets shoat s amen tot William H. Robertson Hi: ammmid w. H. ROBERTSON CASH REGI STEH Filed June 7, 1923 5 sheets sheat 4 William H. Robertson Oct. 13, 1925. 1,556,957

w. H. ROBERTSON CASH REGISTER I Filed June '7, 1923 6 Sheets-Shoet 5 FIG. 8 Fl YOUR 2502 15? $02.05 $02.50 $00.05 $09.00 $09.00 290 $10.60 fig jfl $01.50 (115/ $89168 1.75

'09 I William H. Robertson BM W Gen 13, 1925. 1,556,957

- W. H. ROBERTSON CASH REGISTER Filed June 7. 1925 5 $heets5'neet 6 34/ 2 William H. Robertson- His dam 0 Patented Oct. 13, 1925.

UNITED STATES PATENT OFFICE.

WILLIAM H. ROBERTSON, OF DAYTON, OHIO, A'SSIGNOR TO THE NATIONAL CASH REGISTER COMPANY, OF DAYTON,' OHIO.

CASH REGISTER.

' Application filed June 7, 1923. Serial No. 643,919.

To all whom it may concern:

Be it known that I, WILLIAM H. ROBERT- SON, a citizen of the United States, residing at Dayton, in the county of Montgomery and State of Ohio, have invented certain new and useful Improvements in Cash Registers, of'which I declare the following to be a full, clear, and exact description.

This invention relates to cash registers, and particularly to improvements in the type of machine shown in the Von Pein application for Letters Patent of the United States, Serial No. 293,141, filed April 28, 1919. I

One of the objects of this invention is the provision of mechanism for accumulating the items of a transaction, for printing the items anda total of the same, and indicating mechanism for displaying the total both in the front and rear of the machine.

Another object of this invention is the provision of an improved mechanism for obscuring the indicators from view during the operation of the machine.

With these and incidental objects in view, the invention consists of certain novel features of construction and combinations of parts, the essential elements of which are set forth in appended claims and a preferred form of embodiment of which is hereinafter described with reference to the drawwhich accompany and form part of this specification.

()f said drawings:

Figs. 1 and 1 together constitute a rear elevation of the machine.

Fig. 2 is a sectional view of the machine taken inside the right hand side frame.

Fig. 3 is a detail View of part of the totalizer turn-to-zero mechanism.

Fig. 4 is a detail sectional view of a totalizer wheel taken on the line 4-4= of Fig. 3.

Fig. 5 is a sectional view taken between the printer frame and the side frame of the machine.

Fig. 6 is a detail view of part of the totalizer t-urn-to-zero mechanism.

Fig. 7 is a side elevation of the printing mechanism.

Fig. 8 is a View of the receipt issued by the printing mechanism of the machine.

Fig. 9 is a View of a portion of the record strip.

Fig. 10 is a detail View of the total indicator selecting mechanism.

Fig. 11 is a detail view of the mechanism for raising and lowering the indicators.

Fig. 12 is a detail view of the mechanism for moving the indicator supporting members into the selected positions.

Fig. 13 is a detail view of the mechanism for imparting movement to the cam shaft.

The embodiment illustrated comprises the usual amount keys, means for entering amounts in a totalizer and for printing the same, and means for printing the total of amounts entered. In addition, mechanism is provided for indicating the total amounts. A flash device which covers the indication while items are being entered by the amount keys is also provided.

Referring especially to Fig. 2, the invention is shown in connection with the well known lever key type machine. The keys 25 arranged in denominational groups as usual, are pivoted on a transverse rod 26 carried by the side frames of the machine, and at their rear ends are notched to cooperate with a lip on a key coupler 27 for purposes well known in the art.

The rear ends of the keys are extended to cooperate with pivoted key stops 28 which prevent a simultaneous depression of a plurality of keys in single denominational groups.

Uprights 29, connected to the rear ends of the keys, are provided with notches 30 for engaging rods 31 carried by a rocker member 32, supported on a shaft 33. There is a rocker member for each denominational group of keys 25, and each of the membeis is operatively connected to its registering segment or t-otalizer actuator 35:. y The notches in the uprights 29 are located to transmit amounts of movement to the actuators proportionate to the number of units represented by the keys to which the uprights are connected.

The totalizer actuators are normally in mesh with gears 38 which are operatively connected with the item type wheels 39 (Fig. 7) by telescopic sleeves to print the items 40 on the issuing receipt 41 (Fig. 8).

The key coupler 27, before referred to, is pivotally mounted in the side frames and rests upon the rear ends of the ke from which it receives movement 1- ght hand erli olfl e'kej Qoiplemc 4 a 301%- a l F ig; 13) which cooperates with a slot m a rivmg member 43 ided on a stud 44 pro- "eet the MP. of themehme e 'vin member iii-provided whippposing rac s adapted to be thrown into mesh alternately with a gear 45 on acam shaft 46 to move the shaft in a. counterclockwise direction. The engagement of tier-oaks with thezgear is effected-amt mamtained by a spring 47 and a sprin drawn arm. 48,. and. a 49 on the and; a flange 50 on the operating, n-the usual, manner; r

Theeamshattsfl (Fig.5), extendsrtbrough thin hand] ale flame; r Aeain 5t, fixed to thia ,Q o O a mammg -pmessgd: pivoted imp e n hammer'suppm-ungilarm 52. whieh is ofiset to extend throng an openingjn a printer fi'ame 53 (Fig, 2) into: 0 rati e relation withuhe itemtype wheels 33. means oi this mechan ism the items 40 .8) are pnintedupon the issuing I stri 'l etissuing is.- fed from, a supply M1151 under a guide stud 58, and between the ty wheels and the impression plat ens tower at averting member 59. When each item is printed the iss ;st.rip is fed: forwandone space a %r 60' cmpenating with a second ro r. 61 carrieclion a. ring pulled arm 62. Theroller 60 is rotate .h a pawl 63. en a ratchet secured to the roller. 60. WI 63 is carried on. a Fbell crank arm 64 which ismoved by? an arm. 65 (Fig. 5) secured to the r' ht hand trunnion 166, of theike. coupler. he usual; springactuated paw' 67? (Fig. 7.) prevents a retr nade movement of the. feeding, roller. ribbon 68 passes between the type carriers. and. the paper, over the usual. guide: and-part1 around a feed roller. 69' wlilch is rotated y the usual pawl and ratchet. device. actmtod. by a link. 70 mnneoted to the. bell emk arm. 64. The ril bun ismaintained. in a: taut condition iv a sprinfi tensioned. arm 71 carrying as re ler which therihhon mores. Th amounts represented hy the keys. ode pressed are also en fi 'ed' in a totalizer 75 (F' 2) whichisofa wellknowntype and mi be but briefly described.

The totalizer elements com 76 rigid with the gear whee 77' and the other necessary elements supported on a tumi-to-zero shaft 781 Theshaf't is provided with a groove to cooperate with springpressed pawls (Fig.4)- on.the totali'zer elements to turn the totali zer to zero in the usual manner.

Elle, totalizenis, rouked-inte mesh with the rise pinions also some usual t l t actuators and transfers are efi'ected by meek-- anism so well known in this ty 0 of machinfifil that it will not be describfiw here.l T am u aecumu an r ota iz r is asflrilifl lyj p an, fidifitmg 10 operation. or this purpose, mechanism is it provided for settin up total type wheels 79 (Fig: 7 to t t surmount iiflhetotnibatr and the se indicating elements 80 tghl igs 1 and 2) to display the amount in 75 e totalizer. For this urpose, the totalizer i868 disks 81 (Fig. 2) rigid wit gear wheels 82 mounted on a rod in the totahzer frame and meshing withthq gears 74' rigid with the totalisel 'niona. f The total type wheels 79 ig, 7), are; located to the right of the infier frame 3.1; and are suitably supportuh thereina and int: sh a supplemental. frame 83. Ilghse wheels 1 connected by a tube lile 8,4 with gears- 851 i 5): in meah Q 6; 61 rig' wfil' fihln r uae ed with w I l tmesh with tgears by f?! a tube line 89 gs. 2 end-5} with 1m 90 to be moved into 1 '1 j m Wifllflthe. stops on-the' disks-81 of the, total-i301. The tube line is supported by a rod 91 supported in the frame and in a. bracket 92 at mount a}; the trpggt iI512;meml'ier 9%. TL: 95 steps on t step 81 are so ocat that the try wheels will beset in worn-d anee with t e amount in the totalizer when the arms 90 are moved into contact therelvvyfithi1 The ti pizzligeatiom alsial mted .te 81a wi.in-

Also integral with the as r lent gears 8.7 are other segment 98 w ioh' mesh with segment gear'leversetltl provided with poo tions 100 Wl'tiflgfihOflPW ends'of tension springs L01- attached to a rookies, melm ber L02. The spring. are normally restrained against moving 'the arms 90 and totaltry 'wheelsby a yoke'memher 108 com nested a linlr L04 to said mckig megan ber 102. The member peeked first clockwise and then counter-,oleekvuise by cams secured on a driving shaft 196 In: driven by a gear 101L11 flimsmeshzwith a. gear. 108 drivenv byway suitable means. As the roekingmemben is'moved clockwise.

- the'springsvlm are permitted to function to set up the total tyqpe wheels in accorllhnoe with the amount inn-the totalizer.

The total, type wheels are held in. alimement while the impressions are being made; by the usual'alining pawls, 94 engaging, a notched plate 95 secured to the type wheelgears 85. These pawls are supported in a frame member 96 pivoted on a rod'miinnd actuated by acam on the drivingshaft 1661 The driving shaft 106 makes onerotation for each total printing operation, stopped at the end of the rotation By the reunites-A. nib/heirshin: r r

Impressions from the total type wheels are taken upon the issuing strip 41 before referred to, and also on a total record strip 109 (Fig. 9) which will be described hereinafter. The impressions from the total ype wheels, electros and consecutive number Wheels are made upon the issuing strip by platens carried by a member 110 pivot-ally mounted on an arm 111 supported by a screw stud 112. This arm is rigidly connected to lever 113 which has a roller carried on its lower end engaging a cam formed on the gear 107.

The lever 113 has an upwardly and rearwardly extending arm connected by a link 114 to an impression arm 115 to take impressions from the total type wheels upon the total record strip 109 which is fed from a supply roll 116 to a receiving roll 117.

During the total printing operation the issuing strip is fed by a segment plate 121 (Fig. 5) which engages a pinion 122 coopcrating with a ratchet and pawl feeding device. This segment plate is actuated by the rocking member 102. By this mechanism the strip is given a greater movement of feed than during item printing.

During the total printing operation the totalizer is reset to zero by the actuation of a, segment gear lever 123 (Fig. 6) connected to the link 104 by a short link 120. This segment gear lever meshes with a partial gear 124 secured to a shaft 125 which freely supports the segment gears 86, 87 and 98 (Fig. 5). Secured to the shaft on the left side of the printer frame is a segment gear 1 6 (Fig. 6) which meshes with a gear 121' carrying a spring-pressed pawl 128 cooperating with a ratchet 120 integral with a gear 130 in mesh with a gear 131. The gear 131 is mounted on a shaft 132 connected by a universal short shaft coupling 133 3) with the turn-to-Zero shaft 78 of the totalizer. By means of this mechanism the totalizer is turned to zero during the latter part of the total printing and indicating operation.

The amount, accumulated in the toializer is indicated at the time the total is printed and the indicators are adjusted from the totalizer elements by the same mechanism that adjusts the total type printing wheels pre viously described.

Integral with the segment gears 80 Figs. 5 and 10) are segment gears which mesh with segment gears 141 secured to the right hand ends of a rod 142 and telescopic tubes 143 supported by the side frames of the ma chine and a bracket 144. Also secured to the rod and tubes are segment gears 145 which mesh with racks 146 having one end pivoted to rocking members 147 which are freely mounted on a rod 148 and telescopic tubes surrounding this rod. These rocking members will be moved to positions correspending to the amount in the totalizer when the arms 90 are moved into contact there with.

The rocking members 147 are retained in adjusted position until an indicator-supporting member 149 (Fig. 12) is moved into a corresponding position and an indicator plate 80 engaged with an elevating mechanism. Formed in the upper edges of the rocking members 147 are notches 150 corresponding in number to the steps on the plates 81 of the totalizer. Arms 151 secured to a rod 152 are rocked into engagement with the notches 150 by a dowi'iwardly extending arm 153 (F 10) actuated by an upwardly extending arm 154 integral with the total type wheel alining pawl frame 96. This arm is normally retained in disengaged position by a spring 104.

For each group of item entering keys there are a corresponding number of indi cator plates 80 supported by the indicator supporting member 149 (Figs. 2 and 12). These plates slide in grooves uniformly spaced and radially arranged in the side plates 136 of the rockng member. There are two side plates for each group of indi cator tablets, fastened together at their up per ends by a formed yoke 137 upon which the indicator tablets rest in their normal posit-ion. The lower ends of the side plates are secured to opposite ends of flanged hubs 138 which are secured to telescopic sleeves supported by the rod 148.

The rocking members supporting the in dicator tablets are moved into position by rollers 156 cooperating withthe walls of openings 139 formed in the side plates 136 and similarly shaped openings in the rocking members 147 Fig. 10). These rollers 156 are freely mounted upon rods 15? supported by two arms 1.38 which are cured to sleeves 15$) (Fig. 1) freely mount ed on a rod 100 (Fig. 12) supported by an arm 161 (Fig. 1) and a second arm 102. These arms are secured to arod 103 which is su iiported at each end by the 1mm oi? the machine.

The rod 163 (Fig. 12) is rocked first r1ockwise and then counter-clockwisc by a cam t 170 formed in the side of a gear 111 secured to a shaft 172. Cooperating with the cam 170 is a roller 17? carried by the lower end of a pitman 174, the upper end of which is pivoted to an arm 17?) secured to the rod 103.

The clockwise movement oi the rod 163 will elevate the rollers 156 (Figs. 10 and 12), which, being mounted in the pivoted arms 158, will follow the opening in the rocking member 147 to the narrow portion 170. This rocking member being held rigid at the time by the arm 151 will guide roller 156 to cause the rocking member 149 (Fig. 12) which supports the indicator tablets to move into transverse alinement with the lltl reciting member 147 and placethe' indicator tablet 80 correspondin to the step on the disk in the totalizer in a position to beelevated-t0 the display position.

The shaft 172 is given a complete revolution durin the tot-a1 printing 0 ion by the gear 1%1 which is in mesh wit a: gear 1 7 (Fig. 5) secured to the drivi shaft 106.

The means provided for elevating the indicator tablets 80 to the display position consists of a horizontal bar 178 (Figs. 1, 1 and 2') extending across the top of the machine and secured to vertical plates 179 at each end. Them lates are ided in their gpera'tion by brac ets 180 igs. 1, 1' and ,-secured to the side frames of the machine. Eachbracket is with vertical opening: 181 in which move rollers 182 and studs 183 mounted on the plates 179. The horizontal bar 1'78 and plates 179 are given a reciprocal motion by links 184 connecting the studs 183" wi'th arms 185 (Fig. 11) whic are integralwith se cnt gears 186 freel' mounted on studs 1 supported in the sid e frames of the machine. The segment gears 186 mesh with segment gears 188 which are secured to a rod 189 supported. by the side frames of the machine.

The rod 189 is oscillated by a link 193 (Fig. 1 and I1) connecting the segment gear 188 with an arm 194 freely mounted on the rod 163. This arm is rocked by a pitman 195 carrying a roll 196 engaging a cam 197 secured to the shaft 172. The cam is formedso as to move the horizontal bar 178 downward to place the last indicators displayed in their normal position before the indicator supporting member is moved to the new position, corresponding to the amount in the totalizer. After the indicator supporting members assume their new positions the horizontal bar is returned to its upper or normal position, displaying the new indication.

The lower edge of the horizontal bar 178 (Figs. 1 and 2) has a plurality of slotted openings 198 through which the tops 199' of the indicator tablets pass as the indicator supporting members 149 are rocked. Notches 200 formed on opposite'sides of the indicator tablets engage horizontal lugs 201 on the bar 178 to move the indicator tablets into and out-of their displaying position.

The indicator tablets are arranged to indi'cat toward the front and the rear ofthe' machine. The indicator tablets in the first group on the left in Fig. 1', which is" iihe' center group, are provided with characters" on both sides and indieateboth to the front and the rear. Theother groupsof indicator tablets in Fig. I are seen only from the fmntof the'machine, and their su portingmember: 149' are moved in unison with the supporting members 149 (Fig. 1*) for the rear indicator tablets 'l he'firat supp'om 1 member on the left in Fig. 1" and wa ter one to merignt in Fi 1 are seouh w hubs 138 which are pinned to themd I481 The other three six porting membere in" it 1 and the 900011 ,thnaeee tomb y n the right in Fig. 1', ate secured to hubs which are ieetenea ee-teiesceg tew I" item key 25 the indicators 1s 66 b {)ast total ri i tingopmg n yhorimnt'a ym .tes su on swinging yokes' 20% plbkio'fiat Q of the machine. These y'oks' 11w h mountedon stubs 206 mm t 208; The obsc'iiring means of a bi'fu'rca't integral with the yoke 205; and a pm 208 seemed in the at of vertically moringdplate which is portedwin and gui ed stubsm'tl and (Fig; 5) ingunted in the smegma of mac fnea" inen 21 1 and 220 respectively. The lewd- 535 the plate 209 is formed with an angems projection 212 (Figs. 5' and 13) which is ofl set to extend inside the frame to y the key coupler 27 by means of which it is raised until a shoulder 213 e'nga' a lately 214 to retain the vertical plate iliits elevate?! position until released by the total rintia f operation, when the plate will he returns by a spring 215. The latch 2141s freely mounted in a stub 216' and normally held against a pin 217 by a spring." The latch is moved counterclockwise to release; the plate by a projection 218 on the (Figs. 5 and 11) when the arm moves clockwise as hereinbefore described. I

Wit-h and incidental objects in View, the invention consists of ceriiamnovel fee tures of construction and combinations of" parts, the essential elements of wh ieh are, set forth in ap ded claims'and apref form of enrbo iment of which is heroine f with reference to the drawings which accompany and form part oft'hiis sponding to'the amount on the totalizer, and means actuated by said operating device for moving selected indicating elements into displaying position.

2. In a machine of the class described, the combination of a totalizer, means for entering items in said totalizer, an operating device operable only independently of the item entering means, indicating elements, adjustable supporting means for said indicating elements, connections intermediate of the totalizer and said supporting means rendered effective by an operation of the operating device to adjust said supporting means according to the amount on the totalizer, and means com rising a vertically sliding member adapte to engage an indicating element, a connection intermediate said sliding member and a rockin member actuated by a second rocking mem er with means intermediate of said rocking member and said operating device to move an indicator into a display position.

3. In a machine of the class described, the combination of a totalizer, a lurality of indicators, an oscillating mem er supporting said indicators in their normal position, means intermediate of said totalizer and said oscillating member for controlling the move ment of said oscillating member for selecting indicators, an operating device, means actuated by said operating device for moving said oscillating member, and a vertically sliding member actuated by said operating device to raise and lower selected indicators.

4. In a machine of the class described, the combination of a totalizer, means for entering items in said totalizer, an operating device operable only independently of the item entering means, a plurality of indicators, an adjustable means normally supporting said indicators, means intermediate of the totalizer and the indicator supporting means and cooperating with said operating device for adjusting said indicator supporting means, and means operated by said operating device for elevating a selected indicator into displaying position.

5. In a machine of the class described, the combination of a totalizer, a plurality of indicating elements, a movable member having a plurality of grooves, guiding said indicating elements, a second movable member, means intermediate of said totalizer and said second movable member for diflerentially moving said second movable member, an operating device, means actuated by said operating device for alining said second movable member, means actuated by said operating device to cooperate with said movable members to move said first movable member to a position correspondin to the position of said second movable mem r, and means ac tuated by said operating device for partially removing one of said indicating elements from its guide for display purposes.

6. In a machine of the class described, the combination of a totalizer, means for entering items in said totalizer, an operating device operable only independently of the item entering means, a movable indicator supporting member adapted to support a plurality of indicators in normal position, means intermediate of said totalizer and said indicator supporting member adapted to adjust said supporting member i rom the totalizer, and means actuated by said operating means for moving one of said indicators with respectto said indicator supporting member for the purpose of display.

7. In a machine of the class described, the combination of a totalizer, means for entering items in said totalizer, an operating device operable only independently of the item entering means, a plurality of indicators, a movable indicator supporting means adapted to be positioned under control of the totalizer, means adapted to raise one of said indicators to a display position, and means operated by said item entering means for obscuring the displayed indicator.

8. In a machine of the class described, the combination of a totalizer, means for outering items in said totalizer, an operating device operable only independently of the item entering means, a plurality of indicators, a movable indicator supporting means adapted to be positioned under control of the totalizer and actuated by the operating means, means adapted to raise one of said indicators to a display position, means operated by said item entering means for obscuring the displayed indicator, and means actuated by said operating device for removing said obscuring means.

9. In a machine of the class described, the combination of a totalizer, means for entering items therein, an operating device oper able only independently of said item entering means, a plurality oi indicators, movable supporting means l'or said indicators. and connections intermediate oi the totalizer and indicator supporting means adapted to be operated by the operating device to move into displaying position indicators corresponding to the total appearing upon said totalizer.

10. In a machine of the class described, the combination of a totalizer, means for entering items in said totalizer, an operating device operable only independently of the item entering means, indicating elements having a normal position and an operated position, means for supporting said indicating elements in normal position, said means adapted to be difierentially adjusted under control of said totalizer, means actuated by said ope-rating means for moving l ill said indicating elements into operated position, means actuated by said item entering means and adapted to be moved horizontally to obscure said indicating elements in operated position, and means actuated by said operating device, to return said obscuring means to normal position.

11. In a machine of the classdescribed, the combination of a totalizer, means for entering items in said totalizer, an operating device operable only independently of the item entering means, Indicating elements, adjustable supporting means tor said indi ating -elements, connections intermediate the totalizer and said supporting means rendered effective by an operation; ofthe operating device to adjust said supporting means according to the amount on the totalizer, means for displaying said indicating elements adjusted to display position, and connections intermediate of the totalizer and operating device for resetting the formertn zero by operation of the letter.

12. In a machine of the class deseribed,the combination of a totalizer, item entering means for entering items on said totalizer, an operatin device operable only independent- Y 1y of sai item enteringimeans for indicating totals and inoperable when entering items, and connectionsintermediate of 'the'totnlizgr and the indicating means controlled by an operation of the operating device for controlling the adlnstlnant of the indicating means from thetotaliaer to indicate-the appearing on said totaliler- 13. In a machine oftheelassd scribed;,the combination of a totaliaer, a plurality of im dicators, a pivoted member supporting said indicators in their normal position, a second pivoted member, means intermediate .Of sai totalizer and said second pivoted member for diflerentially moving said second pivoted member, an operating device, and means actuated by said operating device and cooperating with said pivot d members to move said first pivoted member :to a ;position corresponding to the position of said secondipivoted member.

14. In a machineioi the class described, the combination of a totalizer, a plurality of indicators, a. movable member supporting said indicators in their normal position, ,a second movable member, means intermediate of said totalizer and said second movable member for difl'enentially moving said sec ond movable member, an operating device, means actuated by said operating device and cooperatin with said movable members to move said rst movable member to a position correspondi to vhep sit on oft-mid movable mefier, and-inwrfnr :aliniag second movable hile moamzimd first movable member. v 15. Jan machine wa fiomriha qtha s mbinatlqn ot a tetnlwnm amora means for controlling the lmthereln, an operating demos-Wh m sfdep nd ng of 8& itama ntamaanm mdicating supmtinrm; m an for and indicating n m -l yzafic tme q iqnsinte 1 1; totalizer andthe 1n Magical? able supportutlgmonns a operation by totalizer. l

16. In a machine ofstheiohss mihrl,

the combination of Slim in a i.

tering items in minimum-0901: a: device operable only [Math 10 itemv entering means, w having a normal posktiflb-qn position, means operated .inmantering means for obscure); mid w elements in o ratcdli uidity l3 stunted by said open g'dem tor return tion.

17.}npmachineofithedb QOmlRDMHQILOfifl-WWWI M I mg items 111 saidtotalalmm o a viceoparablbionlym duality-n lib-at! eaten means, any moi anadaastabla indi ator a movable member actuated ham to mediate at said totalizerrond m member and means-open in satin s ag w-iar eating the total gmm m m! operate! 1;; h

m said obscuring mas-tn V.

mtriruleh kin-1AM in jimmmxemm Animal. inns.) in 

